/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/IVoiceChatRoom.h
all currently known members of this chat room
void GetMembers ( [TArray](API\Runtime\Core\Containers\TArray)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FVoiceChatRoomMember](API\Plugins\OnlineSubsystem\Interfaces\FVoiceChatRoomMember) >> & OutMembers ) const